Method for improving crystallization efficiency of lithium carbonate in solar pond

The invention relates to a method for improving the crystallization efficiency of lithium carbonate in a solar pond, belongs to the technical field of carbonate type salt lake lithium extraction, andsolves the problem of low lithium yield of traditional solar pond heating lithium precipitation method by using carbonate type salt lake high Li < + > low CO3 < 2-> halogen as a raw material in the prior art. The method for improving the crystallization efficiency of lithium carbonate in the solar pond comprises the following steps: step 1, preparing a salt gradient solar pond by taking the carbonate type salt lake high Li < + > low CO3 < 2-> halogen as the raw material; 2, performing repeated mechanical disturbance and forced convection circulation operation on a lithium precipitation layer at the bottom of the salt gradient solar pond; and 3, after the lithium carbonate in the lithium precipitation layer at the bottom of the solar pond is completely separated out, performing halogen discharging operation, and co